Helios Service Partners is the industry leader in multi-site mechanical services. Helios Service Partners is the result of the nation's top independent HVAC-R national accounts businesses coming together. We service 42 states with our 100% self-performing technicians, primarily focused on HVAC-R as well as plumbing and commercial kitchen service. Come discover why America's top brands trust Helios Service Partners. Helios Service Partners is a proud Orion Services Group company.